Threadless Tees has released a line of t-shirts based on Marvel’s Spider-Man. The company challenged artists to design “a t-shirt inspired by the battle between Spider-Man and his archenemies.” And by archenemies, Threadless kept this limited to: Dr. Octopus, Electro, Sandman, Venom, Lizard, Kraven, Green Goblin, Vulture, Rhino, and Shocker. I found some of the contest entry rules funny, for instance — “The characters cannot be represented as children or animals” or “may not use actor likenesses or any logos in your design” and the expected no “blood and guts”, “political or adult content (sex, smoking, drinking, etc.)” Check out the winners after the jump, and buy them now on Threadless.